Electrical – Current adder or voltage adder


Is this a current adder or a voltage adder?

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I just designed it.

Best Answer

Neither, if the inputs come from voltage sources. The voltage at resistor output would equal to whichever of the two input voltages is higher, minus the voltage drop of the diode. Of course, if the inputs are not fed with a voltage source, the situation is more complex. If the inputs are driven with current sources, then the currents will add up, but currents would add up even without the diodes so they are irrelevant.